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charset=us-ascii Content-Disposition: inline In-Reply-To: <20230308032748.609510-3-nphamcs@gmail.com> X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 10ADD40028 X-Stat-Signature: ayw9hjpi5sdagka7icxy8rsxnozbzytq X-HE-Tag: 1678370987-82621 X-HE-Meta: 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 2zl9HiV/ 9RY3qYaO2+xIm9RfQjUEVyoMLuwwp2FsotS7RS9SzUxntk7rvFBV9upukEJZ7551/NN/RCwPyS+fJtzbxSSlJfagMj47AJ0BZzZlZcl6xHcWSulgXGDXYLZOWsoZ4pkU6LZiIlA8Xd1D8sGSTCrB21KqfB+dQxl9unkJUdGKJkQ87Ji7oIzixdOpARANWM6dvRjDV9/EJEQ1UWpBRGtYIZZUOhksP85LZDlhR0t7N7mqyegIE4lcCE7IJGu2jRM/JjiF4TZLAvOfMycwBx94hl/8wYZcCb5n7RqlKj3/+xDdDBpAFlwp5KVy1vi7TVLj0HenZI5RD99N1n1dQD43lOJCILo9um+kOHnNZaCSdhe+yg2ZbhfIG/MPgPPJRkdsbPYbFxDZRskuD/q4YeMnEeycGDQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi Nhat, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on 1440f576022887004f719883acb094e7e0dd4944] url: https://github.com/intel-lab-lkp/linux/commits/Nhat-Pham/workingset-refactor-LRU-refault-to-expose-refault-recency-check/20230308-112932 base: 1440f576022887004f719883acb094e7e0dd4944 patch link: https://lore.kernel.org/r/20230308032748.609510-3-nphamcs%40gmail.com patch subject: [PATCH v11 2/3] cachestat: implement cachestat syscall config: arm-randconfig-r046-20230308 (https://download.01.org/0day-ci/archive/20230309/202303092111.mhDcYB71-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/ca34a4daf11f6fbb9731205af7acd06fe620e447 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Nhat-Pham/workingset-refactor-LRU-refault-to-expose-refault-recency-check/20230308-112932 git checkout ca34a4daf11f6fbb9731205af7acd06fe620e447 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash kernel/bpf/ mm/ prepare If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Link: https://lore.kernel.org/oe-kbuild-all/202303092111.mhDcYB71-lkp@intel.com/ All warnings (new ones prefixed by >>): >> :1565:2: warning: #warning syscall cachestat not implemented [-Wcpp] -- In file included from include/linux/filter.h:11, from include/linux/bpf_verifier.h:9, from tools/lib/bpf/relo_core.c:8: >> include/linux/compat.h:821:45: warning: 'struct cachestat' declared inside parameter list will not be visible outside of this definition or declaration 821 | compat_arg_u64(off), struct cachestat __user *cstat, | ^~~~~~~~~ -- In file included from include/linux/filter.h:11, from kernel/bpf/core.c:21: >> include/linux/compat.h:821:45: warning: 'struct cachestat' declared inside parameter list will not be visible outside of this definition or declaration 821 | compat_arg_u64(off), struct cachestat __user *cstat, | ^~~~~~~~~ kernel/bpf/core.c:1628:12: warning: no previous prototype for 'bpf_probe_read_kernel' [-Wmissing-prototypes] 1628 | u64 __weak bpf_probe_read_kernel(void *dst, u32 size, const void *unsafe_ptr) | ^~~~~~~~~~~~~~~~~~~~~ -- In file included from include/linux/filter.h:11, from include/linux/bpf_verifier.h:9, from kernel/bpf/btf.c:19: >> include/linux/compat.h:821:45: warning: 'struct cachestat' declared inside parameter list will not be visible outside of this definition or declaration 821 | compat_arg_u64(off), struct cachestat __user *cstat, | ^~~~~~~~~ kernel/bpf/btf.c: In function 'btf_seq_show': kernel/bpf/btf.c:6786:29: warning: function 'btf_seq_show' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 6786 | seq_vprintf((struct seq_file *)show->target, fmt, args); | ^~~~~~~~ kernel/bpf/btf.c: In function 'btf_snprintf_show': kernel/bpf/btf.c:6823:9: warning: function 'btf_snprintf_show' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 6823 | len = vsnprintf(show->target, ssnprintf->len_left, fmt, args); | ^~~ -- >> mm/filemap.c:4034:6: warning: no previous prototype for 'ksys_cachestat' [-Wmissing-prototypes] 4034 | long ksys_cachestat(unsigned int fd, size_t len, loff_t off, | ^~~~~~~~~~~~~~ -- >> :1565:2: warning: #warning syscall cachestat not implemented [-Wcpp] -- >> :1565:2: warning: #warning syscall cachestat not implemented [-Wcpp] vim +821 include/linux/compat.h 809 810 /* net/socket.c */ 811 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, compat_size_t len, 812 unsigned flags, struct sockaddr __user *addr, 813 int __user *addrlen); 814 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, 815 unsigned flags); 816 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg, 817 unsigned int flags); 818 819 /* mm/filemap.c */ 820 asmlinkage long compat_sys_cachestat(unsigned int fd, size_t len, > 821 compat_arg_u64(off), struct cachestat __user *cstat, 822 unsigned int flags); 823 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests